While we made every effort to count all well-child visits and immunizations for which a record was included in either the CHDP or Tape-to-Tape and pseudo-claims files, we could not count services for which providers did not submit a claim and/or fill out the appropriate paperwork.
1 percent of AFDC children continuously enrolled for their first 2 years of life had no well-child visits paid by CHDP or' the MMC programs.
1 percent) of AFDC infants continuously enrolled in HPSM had no immunizations paid through either the CHDP or HPSM programs, and less than one-third (27.
Compared with HPSM beneficiaries, AFDC children continuously enrolled in SBHI were much more likely to have had an immunization through the CHDP or SBHI programs and to be in full compliance with the AAP immunization recommendations (Table 7).
After processing the Tape-to-Tape files and the CHDP files, the data were organized into a longitudinal, person-based file containing complete utilization records for services reimbursed by Medi-Cal for each child for the 4-year period 1981-84.
It is noteworthy that, despite the availability of CHDP to provide preventive care visits to children of all ages, only 23.
As previously mentioned, we expected that not all preventive care was billed through the CHDP program.
In 1981, nearly 19 percent of Medi-Cal children received preventive care services that were billed through other Medi-Cal claims, rather than through the CHDP program.
The types of CHDP screens that children received in 1981 are described in Table 5 for children ages 1-4.
Immunization status of children ages 1-4 who were screened through the CHDP program in 1981 is shown in Table 6.
Because the Medi-Cal immunization codes do not distinguish the type of immunization received, only that an immunization had been given, we are unable to present comparable type-of-immunization information for those children whose immunizations were not billed through CHDP.